Radiotracer examination of gas-liquid separators used in arsenic speciation by hydride generation - AAS

被引：0

作者：

Van Elteren, J.T. ^{[1
]}

Das, H.A. ^{[1
]}

Bax, D. ^{[1
]}

机构：

[1] Netherlands Energy Res. Foundation, P.O. Box 1, 1755 ZG Petten, Netherlands

来源：

Journal of Radioanalytical and Nuclear Chemistry | 1993年 / 174卷 / 01期

关键词：

Gases; -; Hydrides; Radioactivity;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Two types of gas-liquid separators for use in on-line hydride generation AAS have been examined: the 'classical' one, in which gas and liquid are separated by gravity and that based on diffusion through a permeable tube. Results are presented for the determination of arsenic species (arsenite, As(III); arsenate, As(V); monomethylarsonic acid, MMAA; dimethylarsenic acid, DMAA). Yield (of hydride generation and gas-liquid separation) and response time are investigated as functions of the experimental variables. It is concluded that in conjunction with a cold trap, only the 'classical' gas-liquid separator is satisfactory.

引用

页码：133 / 144

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